Convertible chair.



Patented Sept. 2, I902,

T. W. WASHBURN.

CONVERTIBLE CHAIR.

{Application filed Sept. 13,1899.

UNITED STATES PATENT EETcE,

THEODORE W. WASHBURN, OF BALDWINSVILLE, MASSACHUSETTS, ASSIGrNOR TOGILMAN WAITE, OF BALDWINSVILLE, MASSACHUSETTS, DOING BUSI- NESS AS THEWAITE CHAIR COMPANY.

CONVERTIBLE CHAIR.

SPECIFICATION forming part of Letters Patent No. 708,278, datedSeptember 2, 1902. Application filed September 13, 1899. Serial No.730,359. (No model.)

To a whom, it may concern.-

Be it known that I, THEODORE W. WASH- BURN, of Baldwinsville, in thecounty of Worcester and State of Massachusetts, have invented anImproved Convertible Chair, of

which the following is a specification.

The object of my invention is to provide a which is of practicalconstruction, and which is readily locked in its raised position; and

my invention is a convertible chair comprising a frame, a seat, crossedlegs pivoted to gether, a link connection between the frame and frontlegs, a link connection between the I 5 seat and front legs, and aspring-catch to lock the frame to the seat when the chair is in itselevated position.

In the accompanying drawings, Figure 1 is a side elevation of aconvertible chair embodying my invention. Fig. 2 is a detail.

Seat A is provided with the usual back: C6 and is mounted on crossedlegs, of which E is one of the front pair, and B one of the rear pair.These crossed legs are pivoted together at b and are provided at theirlower ends with wheels b. Each rear leg B is pivotally connected at b toseat A, and each front leg B is connected to seat A by a link 11 Frame Cis pivotally connected to each rear leg 13 at c and connected to eachfront leg B by links 0. Spring-catch D is rigidly secured to seatA andis slotted at d to receive member d, which is secured to round d offrame C.

In Fig. 1 the chair is shown in its elevated position, and to lower itspring-catchD is raised, member at slipped by slot d, and the chairisthen lowered by means of the frame, which through link 0' controls thefront legs and through pivot 0 controls the rearlegs. From the lowerposition the chair is raised by the frame and locked by thespring-catch. convertible chair which is easily operated,

It will be clear that my connection between the frame, the seat, and thelegs enables me to confine the angular motion of the frame within smalllimits and also makes a firm substantial support for the chair, whetherused in its elevated or lowered position. WhatI claim as my inventionis 1. In a convertible chair the combination of crossed legs pivotedtogether; a seat piv- 5o oted to the rear legs and connected by alink tothe front legs; and a frame pivoted to the rear legs and connected by alink to the front legs.

2. In a convertible chair the combination a of crossed legs pivotedtogether; a seat pivoted to the rear legs and connected bya link to thefront legs; a frame pivoted to the rear legs and connected bya link tothe front legs; and a spring-catch for holding the chair in its elevatedposition, one member of the catch being on the frame and the other onthe seat.

THEODORE W. WASHBURN. W'itnesses:

J. G. WAITE,

J. F. WINCH,

M. A. WINCH,

H. A. MANDELL.

